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Automotive Head Lamp Beam Pattern Uniformity Evaluation
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English
Abstract
A method of evaluating the uniformity of an illumination pattern of an automotive head lamp on a road surface is presented. The most critical area where the beam pattern uniformity can be identified is the high intensity region. In this area three parameters are used to evaluate beam pattern uniformity, correlation set, contrast level and relative intensity factor gradient. In a low intensity region of the illumination pattern, the same principle can be applied.
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Wang, B., Kreysar, D., and Jiao, J., "Automotive Head Lamp Beam Pattern Uniformity Evaluation," SAE Technical Paper 960789, 1996, https://doi.org/10.4271/960789.Also In
Automotive Design Advancements in Human Factors: Improving Drivers Comfort and Performance
Number: SP-1155; Published: 1996-02-01
Number: SP-1155; Published: 1996-02-01
References
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- Code of Federal Regulations 1994
- SAE J1383 JUN90-Performance Requirements for Motor Vehicle Head Lamps,” SAE Ground Vehicle Lighting Standards Manual 21 24 1994
- Abramowitz Milton Stegun Irene A. “Handbook of Mathematical Functions,” 11 Dover Publications. Inc. New York 1970